RE: /proc/scsi/map

From: Heinz, Michael (mheinz@infiniconsys.com)
Date: Mon Jun 17 2002 - 07:55:48 EST


>From an infiniband point of view, this sounds great!

--
Michael Heinz
Infinicon Systems, Inc.
http://www.infiniconsys.com 

> -----Original Message----- > From: Sancho Dauskardt [mailto:sancho@dauskardt.de] > Sent: Saturday, June 15, 2002 3:50 PM > To: Kurt Garloff; Linux kernel list; Linux SCSI list > Cc: linux-usb-devel@lists.sourceforge.net; > linux1394-devel@lists.sourceforge.net > Subject: Re: /proc/scsi/map > > > > >Life would be easier if the scsi subsystem would just report > which SCSI > >device (uniquely identified by the > controller,bus,target,unit tuple) belongs > >to which high-level device. The information is available in > the kernel. > > > >Attached patch does this: > >garloff@pckurt:/raid5/Kernel/src $ cat /proc/scsi/map > ># C,B,T,U Type onl sg_nm sg_dev nm dev(hex) > >0,0,00,00 0x05 1 sg0 c:15:00 sr0 b:0b:00 > [...] > > Great, this was really missing badly. > > But how about adding another column: GUID. > Most usb-storage and (all?) FireWire devices have such a > unique identitiy. > In contrast to native SCSI devices, these emulated SCSI devices on > hot-plugging busses will change their LUNs/IDs. Therefor the > GUID is really > a must to be able to create stable names (laptop suspend, etc.). > > Both usb-storage and iee1394-sbp2 know the GUID. It only needs to be > communicated.. > > I'd guess that FibreChannel has similar problems ? > > - sda > > - > To unsubscribe from this list: send the line "unsubscribe > linux-scsi" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/



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